Παραπομπή APA

Ehlers, E., & Krafft, T. M., C. (2001). Understanding the earth system. Springer.

Παραπομπή Chicago Style

Ehlers, Eckart, και Thomas Moss Krafft, C. Understanding the Earth System. Berlin: Springer, 2001.

Παραπομπή MLA

Ehlers, Eckart, και Thomas Moss Krafft, C. Understanding the Earth System. Springer, 2001.